package com.aerors.tiles;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.SocketTimeoutException;
import java.net.URL;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
public class tianditiles {
private static Map tempMap = new HashMap();
/**
* 远程文件下载
*
* @param url 下载地址
* @param file 保存文件地址
*/
public static boolean download(String zxystr,URL url, File file) throws IOException {
boolean flag = true;
DataOutputStream dos = null;
DataInputStream dis = null;
try {
if (!file.getParentFile().exists()) file.getParentFile().mkdirs();
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");
conn.setConnectTimeout(6000);
conn.setReadTimeout(20000);
conn.connect();
dos = new DataOutputStream(new FileOutputStream(file));
dis = new DataInputStream(conn.getInputStream());
byte[] data = new byte[2048];
int i = 0;
while ((i = dis.read(data)) != -1) {
dos.write(data, 0, i);
}
dos.flush();
}catch (SocketTimeoutException e){
tempMap.put(e,zxystr);
System.out.println(zxystr);
System.out.println(e);
} catch (IOException e) {
flag = false;
System.out.println(e);
} catch (Exception e) {
flag = false;
System.out.println(e);
}
finally {
if (dis != null) dis.close();
if (dos != null) dos.close();
}
return flag;
}
/**
* 计算分辨率
*
* @param maxLevel 最大级别
*/
public static double[] getResolutions(int maxLevel) {
double max = 360.0 / 256.0;
double[] resolutions = new double[maxLevel + 1];
for (int z = 0; z <= maxLevel; z++) resolutions[z] = max / Math.pow(2, z);
return resolutions;
}
/**
* 根据经度获取切片规范下的行号
*
* @param lon
* @param zoom
* @return
*/
public static int getOSMTileXFromLongitude(double lon, int zoom) {
return (int) (Math.floor((lon + 180) / 360 * Math.pow(2, zoom)));
}
/**
* 根据纬度获取切片规范下的列号
*
* @param lat
* @param zoom
* @return
*/
public static int getOSMTileYFromLatitude(double lat, int zoom) {
return (int) (Math.floor((1 - Math.log(Math.tan(lat * Math.PI / 180) + 1 / Math.cos(lat * Math.PI / 180)) / Math.PI) / 2 * Math.pow(2, zoom)));
}
public static void main(String[] arg) throws IOException {
// String type = "ArcGIS";
String type = "CUSTOM";
// double[] extent = {68, 11, 135, 54};//中国
// double[] extent = {113, 23, 129, 35.26};//华东（广州-釜山）
double[] extent = {117, 26, 123, 32};//浙江
// for (int z = 10; z < 11; z++) {
// double[] extent = {-180, -90, 180, 90};
for (int z = 14; z <= 14; z++) {
//计算行列号(使用瓦片的中心点经纬度计算)
//起始结束行
int minR = getOSMTileYFromLatitude(extent[3], z);
int maxR = getOSMTileYFromLatitude(extent[1], z);
//起始结束列
int minC = getOSMTileXFromLongitude(extent[0], z);
int maxC = getOSMTileXFromLongitude(extent[2], z);
// for (int y = minR; y <= maxR; y++) {
for (int y = 6937; y <= maxR; y++) {
for (int x = minC; x <= maxC; x++) {
String urlstr = "https://maps.tilehosting.com/data/v3/" + z + "/" + x + "/" + y +".pbf?key=yzgDrAunRjJjwhG6D3u7";
// String urlstr = "https://b.tiles.mapbox.com/v4/mapbox.mapbox-terrain-v2,mapbox.mapbox-streets-v7/" + z + "/" + x + "/" + y +".vector.pbf?access_token=pk.eyJ1IjoibHhxanNzIiwiYSI6ImNqY3NkanRjajB1MWwzM3MwcnA0dDJrYngifQ.ApTVfmm2zBM_kF22DvtowQ";
// String urlstr = "http://demo.zjditu.cn/vtiles/tdt_zj/" + z + "/" + x + "/" + (y-8054) +".mvt?v=20180831"; //天地图服务器t0-t8间选一个
// String urlstr = "http://t0.tianditu.com/DataServer?T=vec_w&x="+x+"&y="+y+"&l="+z; //天地图服务器t0-t8间选一个
// String urlstr = "http://mt2.google.cn/vt/lyrs=m&scale=1&hl=zh-CN&gl=cn&x="+x+"&y="+y+"&z="+z; //谷歌地图服务器t0-t2间选一个
// String urlstr = "http://online3.map.bdimg.com/onlinelabel/?qt=tile&x="+x+"&y="+y+"&z="+z+"&&styles=pl&udt=20170712&scaler=1&p=1"; //百度地图（加密过的）
// String urlstr = "http://c.tile.opencyclemap.org/cycle/" + z + "/" + x + "/" + y + ".png"; //osm地图
// String urlstr = "http://wprd04.is.autonavi.com/appmaptile?x="+x+"&y="+y+"&z="+z+"&lang=zh_cn&size=1&scl=1&style=8"; //高德地图(6：影像，7：矢量，8：影像路网)
DecimalFormat df=new DecimalFormat("0.00");
System.out.println("X:("+minC+"->"+maxC+"); Y:("+minR+"->"+maxR+")。");
System.out.println("第"+z+"级总共将会有："+(maxC-minC+1)+"个文件夹，每个有"+(maxR-minR+1)+"个文件;总下载："+(maxC-minC+1)*(maxR-minR+1)+"个文件；该级别下载进度："+df.format(100*(y-minR)/(double)(maxR-minR+1))+"%");
System.out.println(urlstr);
String path = null;
// if (type.equals("ArcGIS")) {
// //ArcGIS格式瓦片下载
// path = getTDTilesForArcGISPath(x, y, z);
// } else {
// //一般格式瓦片下载
// path = getTDTilesForCustomPath(x, y, z);
// }
// path = getTDTilesForCustomPathMvt(x,y,z);
path = getOpenstreetForCustomPathMvt(x,y,z);
File file = new File(path);
URL url = new URL(urlstr);
String zxyStr = z+"/"+x+"/"+y;
download(zxyStr,url, file);
}
}
}
Iterator iterator = tempMap.keySet().iterator();
while (iterator.hasNext()) {
Object key = iterator.next();
System.out.println("tmp.get(key) is :"+tempMap.get(key));
}
}
public static String getTDTilesForArcGISPath(int x, int y, int z) {
String l = "L" + String.format("%02d", z);
String r = "R" + makePath(y);
String c = "C" + makePath(x);
String path = "tile/" + l + File.separator + r + File.separator + c + ".png";
return path;
}
public static String getTDTilesForCustomPath(int x, int y, int z) {
String path = "tile/" + z + File.separator + y + File.separator + x + ".png";
return path;
}
public static String getTDTilesForCustomPathMvt(int x, int y, int z) {
String path = "tileMvt/" + z + File.separator + y + File.separator + x + ".mvt";
return path;
}
public static String getOpenstreetForCustomPathMvt(int x, int y, int z) {
String path = "tileOpenStreet/" + z + File.separator + x + File.separator + y + ".pbf";
return path;
}
private static String makePath(int num) {
String str = Integer.toHexString(num);
//ArcGIS行列都是8位长度
while (str.length() < 8) {
str = "0" + str;
}
return str;
}
}
感谢前人经验：
https://www.jianshu.com/p/dc58acf01383
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